MW500 - Standard Portable ORP Meter

MW500 performs ORP measurements with a range of ±1000 mV.
SKU: MW500
Manufacturer part number: MW500

Standard portable meters with no frills! Milwaukee’s low cost durable meters for quick and reliable measurements.

Milwaukee’s Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom, laboratory or for general field use.

MW500 performs ORP measurements with a range of ±1000 mV. The meter is supplied with ORP electrode and calibration solutions.


mV Range ±1000 mV
mV Resolution 1 mV
mV Accuracy ±5 mV
ORP Electrode SE300 (included)
Environment 0 to 50°C / 32 to 122°F; max RH 95%
Battery Type 1 x 9V (included)
Battery Life approx. 300 hours of continuous use
Dimensions 145 x 80 x 40 mm
Weight 220 g (with battery)


SE300 Platinum ORP electrode with 1 m cable
MA9015 Electrode storage solution, 230 ml bottle
MA9016 Electrode cleaning solution, 230 ml bottle
M10000B Electrode rinse solution, 20 ml
sachet (25 pcs)
MA9020 200-275 mV ORP solution, 230 ml bottle
MA6370 Protective hard shell case
MW500 is supplied complete with a SE300 platinum electrode, 9V battery and instructions.
Product tags